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Home Alerts

Grayfly Expands with New Tactics and Loaders

August 13, 2024
Reading Time: 2 mins read
in Alerts
Grayfly Expands with New Tactics and Loaders

Grayfly, a sophisticated cyber threat actor, has significantly expanded its operations from the Indo-Pacific region to a global scale, targeting a broad range of sectors including healthcare, media, government, and education. In recent campaigns, Grayfly has utilized public-facing applications, such as IIS servers, to gain initial access to target networks. The group then deploys the Godzilla webshell to maintain control and further their objectives. This evolution in their tactics underscores Grayfly’s ability to adapt and exploit new vulnerabilities to advance their cyber espionage and data theft operations.

Recently, Grayfly has introduced a suite of new tools to enhance their attack capabilities. The group has deployed new loaders, including StealthVector and StealthReacher, which are designed to stealthily launch additional backdoor components. Their latest modular backdoor, SneakCross, adds another layer of persistence and control to their toolkit. These new tools reflect Grayfly’s ongoing efforts to refine their methods and evade detection while maintaining access to compromised systems.

During post-exploitation, Grayfly employs a variety of tools to ensure persistence and facilitate data exfiltration. The group uses customized tools like iox and Rakshasa, along with Tailscale for maintaining access. MEGAcmd is utilized for efficient data transfer to their command-and-control (C2) server. Additionally, Grayfly leverages Google services to manage C2 activities, further complicating efforts to track and mitigate their operations. These advanced techniques highlight the group’s sophistication and the challenges faced by defenders.

To counteract these evolving threats, cybersecurity solutions from Symantec and VMware Carbon Black provide crucial protection. These products use a range of detection methods, including behavior-based and file-based indicators, to identify and block Grayfly’s malicious activities. Symantec’s behavioral detections and VMware Carbon Black’s cloud reputation services are instrumental in defending against Grayfly’s attacks. Organizations are advised to implement robust security measures and stay informed about emerging threats to safeguard their systems against such advanced adversaries.

Reference:

  • Grayfly Expands Global Reach with New Loaders and Evolving Attack Tactics
Tags: August 2024Cyber AlertsCyber Alerts 2024Cyber threatsGovernmentGrayflyHealthcareIndo-PacificMediathreat actor
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